Purchase a box of devil’s food cake mix (or your favorite flavor) and prepare according to package directions.
Line muffin tins with paper liners and pour enough batter in each to fill to about 1/3 full.
Top with 1 tbsp of fruit preserves (strawberry works great) then add more batter until the muffin tins are approximately ¾ filled. Bake according to cake mix directions.
When they are cool, dust them with powdered sugar, or frost them and sprinkle with red-hot candy hearts.