In a large mixing bowl, whisk together 1 egg, 1/4 cup Greek yogurt, 1 tablespoon light olive oil, and 1 teaspoon apple cider vinegar until smooth and well combined. Add the dry ingredients, including 1-1/3 cups almond flour, 1/4 cup tapioca flour, 1 teaspoon baking powder, 1/4 teaspoon baking soda, 1/4 teaspoon garlic powder, 1/4 teaspoon onion powder, and 1/4 teaspoon salt. Mash with a sturdy spatula until well-blended. The dough should be slightly sticky but manageable.