Guests at your Halloween party won't have to think twice whether they'd like a serving of this molded shrimp cocktail.
In a 1-1/2-quart glass bowl (3-inches high, 7 1/2-inches in diameter), begin arranging shrimp, tails toward the center, in a circle to make 1 flat layer in the bottom of the bowl. (Only the round backs of the shrimp should be visible from the outside of the bowl.) Repeat layers until bowl is full, pressing down every couple layers. As bowl fills up, tuck strips of the roasted red pepper in and around shrimp forming "blood vessels". (It helps to peer through the sides of glass bowl to adjust as necessary.) When bowl is full, press down firmly with a plate that fits inside the bowl. Set aside.
In a small saucepan combine chicken broth and unflavored gelatin; let stand 5 minutes. Cook and stir over medium heat until gelatin has dissolved. Whisk in lemon peel, lemon juice, tomato paste, honey, garlic, salt, ginger, and cayenne pepper until combined. Pour mixture over shrimp in bowl. Cover and chill at least 5 hours or overnight.
To unmold, set bowl in a sink filled with warm water for several seconds. Invert a large plate with sides over bowl. Invert plate and bowl together and remove bowl to unmold. Cover and chill until needed (up to 24 hours). Makes 12 appetizer servings.