Onion Blossoms
["2 large sweet onions, unpeeled", "1/2 c. mayonnaise", "1/2 c. sour cream", "1 Tbsp. chili powder", "2 1/2 tsp. Cajun seasoning, divided", "1 1/4 c. all-purpose flour", "1 c. milk", "oil (for deep frying)"]
["Leaving the root end intact, peel the outer skin of the onions. Cut a small slice off the top.", "Starting at the top of the onions and on one side, make a cut downward toward the root end, stopping 1/2-inch in from the bottom.", "Make additional cuts 1/8-inch from first until there are cuts completely across top of onions.", "Turn the onions a quarter turn so the slices are horizontal to you. Repeat cuts 1/8-inch apart from each other until there is a checkerboard pattern across entire top of onions."]
["sweet onions", "mayonnaise", "sour cream", "chili powder", "Cajun seasoning", "flour", "milk", "oil"]