special equipment: wooden skewers soaked 1 hour ahead
To make the satay: Combine all ingredients except the pork and pour into a shallow, nonreactive dish. Cut the pork tenderloins across into 2-inch-thick pieces. Pound each piece until very thin and even. Place in the dish and turn to coat. Cover and refrigerate at least 2 hours and up to 24 hours.
To make the sauce: Stir all ingredients except peanut crunch candy bar and pretzels until smooth. Place in a serving bowl. Combine peanut crunch candy bar and pretzels and place in a separate serving bowl.
Remove the pork from the marinade, pat dry and cut into 1 1/2-inch thick strips. Thread onto the skewers. Light a grill or heat a grill pan over medium-high heat. Grill the skewers until just cooked through, 3 to 4 minutes per side.
Serve immediately, with the sauce for dipping. Have guests first dip satay in sauce and then in crunch bar and pretzels.