How to Make It
Preheat broiler to HIGH with oven rack 6 inches from heat. Line a rimmed baking sheet with aluminum foil, and lightly spray with cooking spray.
Pour water into a programmable pressure multicooker (such as Instant Pot). (Times, instructions, and settings may vary according to cooker brand or model.) Place cooker rack in cooker. Place chicken drumettes in a bowl, and sprinkle with salt, tossing to coat. Arrange drumettes in a single layer on rack. Cover cooker with lid, and lock in place. Turn steam release handle to SEALING position. Select MANUAL/PRESSURE COOK setting. Select HIGH pressure for 3 minutes. (It will take 3 to 5 minutes for cooker to come up to pressure before cooking begins.)
Carefully turn steam release handle to VENTING position, and let steam fully escape (float valve will drop). (This will take 1 to 2 minutes.) Remove lid from cooker.
Transfer drumettes to prepared baking sheet. Broil in preheated oven until crisp, 9 to 11 minutes, turning once halfway through broiling.
Place pepper jelly, vinegar, butter, and crushed red pepper in microwavable bowl. Microwave on HIGH until butter is melted, about 30 seconds; stir to combine. Place drumettes in sauce; toss to coat, and serve.