Frozen Kong Recipes: 10 Stuffing Ideas Dogs Love

TL;DR: A frozen stuffed toy is one of the best enrichment tools you can give a dog: it turns a 2-minute snack into 30 to 60 minutes of focused licking and chewing, which calms anxious dogs and occupies bored ones. The trick is layering wet and dry fillings, plugging the small hole, and freezing it upside down so nothing leaks out. Below are 10 dog-safe filling combos plus a layering-and-freezing method. The one thing to mind: a fully stuffed toy can hit 200 to 300 calories, so treat it as part of a meal, not an extra.

A stuffable rubber toy (the classic hollow chew toy most people call a Kong) becomes a different animal once you freeze the filling. Room temperature, a dog cleans it out in a couple of minutes. Frozen, the same filling takes most dogs 30 to 60 minutes of patient licking. That is what makes it so useful for crate training, separation anxiety, thunderstorms, vet recovery, or just buying yourself a quiet half hour.

This guide walks through how to stuff and freeze one properly, then gives you 10 filling recipes from simple to fancy. A quick note: we do not sell a stuffable rubber toy ourselves, so everything here works with whatever hollow toy you already own, and we will point you to a couple of products that make the fillings easier.

How to Stuff and Freeze a Toy (the Method)

Getting long-lasting results is about technique, not fancy ingredients. The basic method:

1. Plug the small hole first. Smear a dab of peanut butter or press a small piece of soft food (a chunk of banana works) into the small end. This stops the filling from leaking out as it thaws.
2. Layer your fillings. Alternate sticky, wet ingredients (yogurt, pumpkin, wet food) with more solid bits (kibble, small pieces of cooked meat, berries). The layers create texture changes that keep the dog interested.
3. Pack it tight, then top off with liquid. Press the filling down as you go, then add a little broth or yogurt to fill the gaps. The liquid freezes into an icy matrix that makes the whole thing harder to extract.
4. Freeze upside down. Stand the toy in a mug or cup with the big opening facing up and the small hole down. Freeze at least 3 to 4 hours, or overnight for the longest-lasting result.
5. Start easy. For a first-timer, freeze loosely and leave the filling softer so the dog gets quick wins and does not give up.

10 Frozen Stuffing Recipes

Mix and match based on what is in your fridge. All ingredients here are dog-safe in moderation; mind the calorie note at the end.

1. Peanut Butter and Banana

Mash half a banana with a tablespoon of xylitol-free peanut butter. Classic, creamy, and a guaranteed hit. Always check the peanut butter label for xylitol, which is deadly to dogs (see our peanuts guide).

2. Yogurt and Berries

Pack with plain Greek yogurt and press in a few blueberries. Light, probiotic-friendly, low calorie. For safe yogurt picks, see our yogurt guide.

3. Pumpkin and Oats

Mix plain canned pumpkin (not pie filling) with a spoonful of plain rolled oats. Gentle on digestion and high in fiber. More on pumpkin in our pumpkin guide.

4. Wet Food Classic

Spoon in your dog's regular wet food and freeze. The simplest option, and it counts as part of a meal so the calories are not "extra."

5. Kibble and Broth

Pack with your dog's normal kibble, then pour in low-sodium broth (no onion, no garlic) to fill the gaps. Freeze. This turns ordinary dinner into a 30-minute project.

6. Chicken and Sweet Potato Mash

Mix shredded cooked chicken with mashed plain sweet potato. High protein, naturally sweet, and filling. (Our mix makes this version effortless, more below.)

7. Pumpkin-Yogurt Swirl

Swirl plain pumpkin and Greek yogurt together for a two-flavor, soothing filling. Good for sensitive stomachs.

8. Banana and Oat "Cookie Dough"

Mash banana with rolled oats and a tiny bit of peanut butter into a thick paste. Dense, chewy, and takes a while to lick out.

9. Apple and Carrot Crunch

Pack with finely diced apple (no seeds or core) and shredded carrot, bound with a little yogurt. Low calorie and crunchy. Skip the apple seeds, which contain trace cyanide.

10. Salmon and Pumpkin

Mix flaked cooked salmon (boneless, fully cooked, no seasoning) with plain pumpkin. Omega-3s plus fiber, and the fishy smell drives most dogs wild.

Layering Combos That Last Longest

If you want maximum lick time, build the toy in layers rather than one homogeneous mush:

• Bottom (plug): a dab of peanut butter or a chunk of banana in the small hole.
• Lower layer: something dense like mashed sweet potato or a wad of wet food.
• Middle: kibble or small treats pressed into yogurt.
• Top layer: a sticky cap of peanut butter or pumpkin to slow the first few minutes.
• Finish: pour broth over the top to fill air gaps, then freeze upside down.

The variety in texture and resistance is what stretches the activity out. A single soft filling gets cleaned out fast; a layered, partly frozen one takes far longer.

The Easier Option: Lick Mats

If your dog gives up on a stuffed toy, or you want something easier to fill and clean, a lick mat is the simpler cousin. You spread any of the fillings above across a textured silicone surface and freeze it flat. The grooves force slow licking, and there is no awkward stuffing or scrubbing of a deep cavity. Our silicone lick mat suctions to the floor or the side of the tub, which keeps a determined dog from flipping it. It is our go-to for bath time, nail trims, and calming a dog during fireworks.

The Cooper's Treats Approach

The hardest part of stuffing a toy is sourcing and prepping a good filling. That is where our mixes save you the work. Our Chicken and Sweet Potato Pupsicle Mix is real meat plus sweet potato, just add water, and it makes a perfect frozen filling: protein-forward, naturally sweet, no added sugar, and no dairy. Spoon the hydrated mix into a stuffable toy or onto a lick mat, freeze, and you have a long-lasting treat without hunting through the fridge. You can also pour the same mix into our paw and bone silicone molds to make stand-alone frozen pops for the days you do not feel like stuffing anything.

Calorie and Safety Notes

• Calories add up fast. A fully stuffed toy can reach 200 to 300 calories. If you do this often, count it as part of a meal, not an extra treat, or your dog will gain weight.
• Always check peanut butter for xylitol. It is deadly. Use brands that list only peanuts (and maybe salt).
• No onion or garlic in any broth or wet food you add. Both are toxic to dogs.
• No grapes, raisins, or chocolate. Never use them as fillings or toppings.
• Skip apple seeds and fruit pits. Use only the flesh.
• Pick the right toy size and material. Use a toy sized for your dog and check it regularly for cracks or chunks. Replace worn toys, and supervise heavy chewers.
• Serve on a hard floor or outside. Thawing filling drips, and that is a carpet problem.

Introduce new fillings one at a time so you can spot any stomach upset, and always supervise a dog with a new toy until you know they are a careful chewer.