Line an 8×8-inch pan with parchment paper.
Mix almond flour, syrup, melted butter, and vanilla until a soft dough forms. Press into the bottom of the pan and refrigerate.
In a saucepan, melt butter and sweetener over medium heat. Simmer 5–7 minutes until golden, then add cream, vanilla, and salt. Stir until smooth and thickened.
Pour caramel over the nougat layer, sprinkle peanuts on top, and chill for 30–40 minutes until firm.
Melt chocolate chips and coconut oil together, pour over the caramel layer, and smooth the top.
Refrigerate 1–2 hours before slicing into bars.