Brussels Sprouts Sliders: the delicious keto recipe for a bite-sized appetizer

Total time: 30 Min
Difficulty: Low
Serves: 8 people
By Cookist

Brussels sprouts sliders are an easy, bite-sized, keto appetizer recipe where you use Brussels sprouts instead of bread buns for making sliders. Brussels Sprouts get a lot of bad publicity, but unfairly so. They look like little cabbages and are from the same family as purple and green cabbage. They can be steamed, roasted, or boiled. But in this recipe, we decided to get creative.

The roasted brussels sprouts with grilled bacon are crispy on the outside, but nice and soft on the inside. You can customize the filling as you want, so don’t forget to look at our tips below. You’ll love this creative appetizer!

How To Soften Brussels Sprouts Before Roasting

It’s important to soften the Brussels sprouts first, before you roast them. To do this, you can blanch them. To do this, lower the sprouts into rapidly boiling water. Boil for 5 minutes. When the vegetables are just tender, quickly remove them from the boiling water with a slotted spoon and plunge them into a bowl with ice water to stop the cooking process.


To make sure the brussels sprouts keep their green color, dump them into cold water after blanching to prevent them from overcooking.

Look for large, bright green brussels sprouts. They should be firm and be at least 1 inch in diameter.

To make the brussels sprouts crispy and prevent sogginess, dry them properly before roasting.


Brussels Sprouts Slider Variations

Use any type of cheese: feta cheese, goat’s cheese, cheddar cheese, swiss cheese, or gruyère.

Here are other pairing ideas for you to try:

  1. prosciutto, mozzarella pieces, sliced cherry tomatoes
  2. miniature meatballs, tomato, lettuce, and pickles
  3. vegan: mini black bean burgers, avocado dressing
  4. vegan: miniature eggplant (roasted and sliced), ricotta, tomato sauce
  5. ham and cheddar cheese.

How To Store Brussels Sprouts Sliders

Store leftovers in the fridge for up to 4 days. Reheat in the oven for 10 minutes.

Roasted brussels sprouts can be frozen. Place the roasted and cooled sprouts in an airtight container or a Ziploc bag, and freeze for up to 3 months.


Brussels sprouts
salt and pepper to taste
Olive oil
for the onions
medium white onion
2 tbsp
Wine vinegar
1 tbsp
salt and pepper to taste
2 tbsp
for serving
small brie cheese
bacon, cut into pieces
4 strips

How To Make Brussels Sprouts Sliders

Slice the brussels sprouts in half.

Mix sprouts with oil, salt, and pepper, layer on a tray cut side up, and bake for 20 minutes at 190C/375F.

Then broil until crispy on the top.

Meanwhile, heat a small pan over low heat, add butter, onion, sugar, salt, and pepper. Stir and leave onions to caramelize, stirring from time to time, for about 20 minutes. Fry the bacon until crispy.

Slice the brie into small slices.

To assemble the sandwich, place a piece of bacon, a slice of brie, and onion on top of one half.

Top with another brussels sprout. Secure with a toothpick. 


Don’t skip the blanching step, though, it removes some of the bitterness in the brussels sprouts.

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