Place the peanut butter in a mixing bowl and set aside. In a saucepan, heat the maple syrup on medium-high until it begins to bubble.
Remove from heat and pour into the peanut butter. Whisk until creamy.
Stir in the oat flour. Mix until combined.
Let the dough chill completely, then add any toppings (If you do not let the dough chill, your add-ins could melt!).
To form, press the chilled dough into a lined loaf pan. Carefully remove the dough (so that it keeps its shape) and flip it over (so the rounded corners face up). Using a knife, cut slits into the dough that almost reach the bottom, creating 18 pieces that are connected on the bottom. Freeze.
Once frozen, you will be able to break off a piece every time you need a treat!
