Recipe notes and tips
What makes this burger low carb?
Instead of traditional wheat-based burger buns, this recipe uses homemade keto buns made with almond flour, mozzarella, cream cheese, and eggs.
They’re soft, satisfying, and sturdy enough to hold the juicy beef patties, melted Brie, and creamy mushroom sauce.
What kind of ground beef works best?
Ground beef with approximately 20% fat (80/20) is ideal for juicy, flavorful burgers.
The fat helps keep the patties moist during cooking and adds richness without requiring extra ingredients.
Avoid overworking the meat when shaping the patties, as this can make the burgers dense.
How do I make the perfect keto burger buns?
Make sure the mozzarella and cream cheese are fully melted before combining them with the dry ingredients.
Mix until the dough is uniform, then shape the buns with slightly damp or lightly oiled hands if the dough feels sticky.
Allow the buns to cool completely before slicing. This helps them firm up and prevents them from falling apart.
Can I make the buns without a microwave?
Yes! Melt the mozzarella and cream cheese together in a nonstick saucepan over low heat, stirring constantly until smooth.
Remove from the heat and mix with the remaining dough ingredients as directed.
What kind of mushrooms should I use?
Any commonly available mushrooms work well in this recipe, including white button, brown, or cremini mushrooms.
For a deeper flavor, try a mixture of mushrooms.
Cook them until their moisture has evaporated and they begin to brown before adding the broth and cream. This helps develop a richer, more concentrated sauce.
Can I make the mushroom sauce smoother?
Absolutely! If you prefer a smooth, creamy sauce without mushroom pieces, blend the finished sauce using an immersion blender or a regular blender.
Return it to the skillet and simmer briefly if needed to reach your preferred consistency.
What kind of Brie cheese should I use?
Choose a ripe, creamy Brie that softens easily when warmed.
The rind is completely edible and adds a slightly earthy flavor, but you can remove it if you prefer a smoother texture.
Place the Brie on the patties during the final minute of cooking and cover the skillet briefly to help it soften.
Can I use another cheese instead of Brie?
Yes! Camembert is a delicious alternative with a similar creamy texture and slightly stronger flavor.
Blue cheese is another option if you enjoy a more intense, tangy taste that pairs beautifully with beef and mushrooms.
How do I keep the burgers juicy?
Use ground beef with enough fat, avoid pressing down on the patties while cooking, and handle the meat gently when shaping.
Making a shallow indentation in the center helps prevent the burgers from puffing up.
Cook ground beef patties to an internal temperature of 160°F (71°C).
Can I make this burger without the bun?
Absolutely! For an even simpler low carb option, serve the beef patties with Brie and mushroom sauce in large lettuce leaves or cabbage leaf wraps.
You can also serve them on a bed of arugula with the red onion and mushroom sauce spooned over the top.
Can I prepare the components ahead?
Yes! The keto buns can be baked a day or two ahead and stored in an airtight container in the refrigerator.
The mushroom sauce can also be prepared in advance and gently reheated before serving. Add a small splash of cream or broth if it becomes too thick.
For the best flavor and texture, cook the beef patties shortly before serving.
Storage and leftovers
Store leftover buns, beef patties, and mushroom sauce separately in airtight containers in the refrigerator for up to 3 days.
Reheat the patties gently in a skillet or oven until heated through. Warm the mushroom sauce over low heat, stirring occasionally.
The keto buns can be lightly toasted before assembling to restore their texture.