Preheat the oven to 350 degrees F (175 degrees C). Grease 30 mini muffin cups.
Mix baking mix, applesauce, 1/4 cup sugar, milk, egg, oil, and 1 teaspoon cinnamon together in a bowl until just blended.
Spoon batter into the prepared muffin cups, filling each 3/4 full.
Bake in the preheated oven until golden, 12 to 15 minutes.
While puffs are baking, place melted butter in a shallow bowl, and combine remaining sugar and cinnamon in a second shallow bowl.
Dip warm puffs in melted butter, then in the cinnamon-sugar mixture.
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