Deep Fried Hushpuppies

So wonderfully crispy! So wonderfully brown! This is basically Southern cornbread in a deep fried ball of goodness. May it enhance your seafood and BBQ! May it soothe your weary soul!
1 cup yellow cornmeal (smidge more)
1 cup all-purpose flour (smidge more)
1 tbsp granulated sugar
½ tsp baking powder
½ tsp baking soda
¼ tsp kosher salt
½ cup buttermilk
1 egg (beaten)
2 tbsp vegetable oil
1/5th - 1/6th red onion (minced; grated yellow onion typically used but I prefer minced red onion)
1 tbsp Cajun seasoning
1 tsp garlic salt
Peanut oil (for deep frying; you just need any oil with a high smoke point)
Equipment:
2 medium-sized mixing bowls
10" skillet (capable of deep frying)