"Create a recipe for whole wheat apple muffins using the provided ingredients: 1 ½ cups whole wheat flour, ¼ cup ground flax seeds, 2 ½ tsp baking powder, ½ tsp baking soda, 1 tsp cinnamon, ¼ tsp salt, 1 large egg, ¾ cup milk, ¼ cup vegetable or canola oil, 1 tsp vanilla extract, ½ cup date paste, and 1 ½ cups Honeycrisp apple cubes."