01 -
Line an 8x8-inch baking pan with parchment paper, allowing paper to overhang on two sides to use as handles later
02 -
Combine confectioners' sugar, peanut butter, butter, sea salt, and vanilla using electric mixer until well combined
03 -
Add milk one tablespoon at a time until mixture becomes a workable dough, similar to play-dough consistency
04 -
Press peanut butter mixture into prepared pan. Cover with plastic wrap and smooth with hands until evenly spread
05 -
Place pan in freezer and chill for exactly 90 minutes. Meanwhile, line a large baking sheet with parchment paper
06 -
Remove from freezer and lift mixture out using parchment handles. Cut out hearts using a 2-inch heart-shaped cookie cutter
07 -
Gather scraps, knead into a ball, press flat again, and cut more hearts until all mixture is used
08 -
Transfer hearts to prepared baking sheet and freeze for another 90 minutes, or until completely firm
09 -
About 20 minutes before dipping, melt chocolate and coconut oil (if using) in a double boiler until completely smooth
10 -
Place a frozen heart on a fork, dip completely in chocolate, then return to parchment-lined sheet. Add sprinkles if desired
11 -
Place dipped hearts in freezer or refrigerator for a few minutes to harden the chocolate coating