Preheat the oven to 350 degrees. In a bowl, mix together the almond flour, baking powder, ground peppercorns, onion powder, and just a pinch of salt. Mix in the egg, mayo, and melted butter.
Step 2
Scoop the batter into 4 muffin tins sprayed lightly with pan spray. The tins should be filled up to about ¼-inch of space from the top. Bake the biscuits for 25 minutes. Let the biscuits cool about 3 minutes before removing from the muffin tins.
Step 3
During the end of baking, make the whipped butter. Whip the second amount of butter in a stand mixer with a paddle attachment until the butter is soft, spreadable, and lighter. Use a spatula to fold chiffonade basil and minced garlic into the butter.
Step 4
Slice a cooled biscuit in half (either way) and spread 1 tablespoon of whipped herb butter over each biscuit.