My Amish buddy dropped by with these fellas at our potluck, and everyone loved them

2 large onions, thinly sliced
1/2 cup almond flour
2 large eggs
1/4 cup grated Parmesan cheese
1/4 cup water
1 tsp baking powder
1/2 tsp garlic powder
1/2 tsp onion powder
1/2 tsp salt
1/4 tsp pepper
Olive oil or avocado oil for frying