In a medium bowl, stir together the peanut butter, honey, and vanilla extract (optional) until smooth.

Blend the old-fashioned oats until they form a fine flour.

Add the blended oats, protein powder, and cocoa powder to the bowl and mix until a thick, dry dough forms.

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Slowly mix in milk, a little at a time, until the dough is soft and easy to work with.

Using a 2 tbsp cookie scooper, scoop the dough and roll into smooth balls with your hands.

Place the brownie balls in the freezer for 30–45 minutes to firm up.

Melt the semi-sweet chocolate until smooth.

Individually dip each brownie ball into the chocolate and place back in the fridge to set for about 15 minutes.

Enjoy fresh, or store in a chilled environment for up to 14 days.