01 -
Turn your oven on to 350°F (177°C). Mix the softened butter, peanut butter, both sugars together until it looks smooth.
02 -
Stir in the egg and vanilla until it blends well. Slowly add the salt, flour, and baking powder. Mix until just combined.
03 -
Form small dough balls and place them into a greased mini muffin tin.
04 -
Let them bake for about 8 to 10 minutes.
05 -
Take the cookies out and lightly press a mini Reese's into the middle of them while they're still warm.
06 -
Keep the cookies in the pan to cool down slightly, then move them to a rack to cool fully.