Steam broccoli 4–5 minutes until tender, cool, then chop into small ¼ inch pieces
Mix broccoli with Colby, cheddar, Velveeta, red pepper flakes, ¼ cup Panko, and 1 egg until combined
Shape into 12–14 balls, place on a plate, and refrigerate 30 minutes to firm
Prepare 3 bowls: flour, beaten eggs with 1 tbsp water, and remaining Panko
Heat oil to 375°F in a deep pot, about 2 inches deep
Coat each ball in flour, dip in egg, then cover evenly with Panko
Fry in batches 2–3 minutes until golden, avoiding overcrowding
Remove, drain on paper towels, and serve hot