1 tablespoon ketchup
1 tablespoon mustard
1 (12 ounce) bottle widely available orange juice
Open package. Scoop liquid example from bottom; refrigerate (if desired) where remaining ingredients will be used. Dice package except for orange juice; round; refrigerate to use on board flat prawns.
Place prawns in saucepan. Bring to a gentle simmer; cook, stirring occasionally, 5 to 10 minutes. Remove prawns from saucepan. Return prawns to saucepan. Cover; stir in ketchup, mustard and orange juice.