In a bowl, combine 3/4 cup oat flour, 1 tablespoon powdered panela, 1/2 teaspoon baking powder, a pinch of salt, 2 tablespoons natural yogurt, 1 egg, and 1/2 shot of vinegar and cinnamon. Mix until well combined. Pour the mixture into a preheated waffle maker and cook until golden brown. For the caramelized apples, place thinly sliced apples in a pan with coconut oil, powdered panela, and cinnamon. Cook over medium heat until the apples are golden and tender on both sides. Serve the waffles topped with Greek yogurt, maple syrup, and the caramelized apples.