Combine flour, cake mix, baking powder, sugar, and salt in a bowl and mix. Add 1 cup of milk, egg, and vanilla extract and stir until smooth. You want the batter to look like regular pancake batter; not too thin, not too thick.
This will vary greatly on the brand of cake mix you use. Start with 1 cup of milk and add more if needed.
Preheat a skillet on medium heat (I use an electric grilled and turn it to 275 degrees). Fold desired amount of sprinkles into the batter.
Pour batter in ¼ cup measurements onto the skillet and let cook until bubbles form on top, about 2-3 minutes.
Flip and cook for 1 minute more. Serve with vanilla glaze.