Twix (by M&M Mars) also came out with a Peanut Butter (released years ago, and re-released recently), a fudge stick one, as well as Cookies and Creme.

Nutritional Facts (For peanut butter TWIX):
Serving size: 2 cookies
Amount per serving:
Calories: 280
Fat Calories: 150
Total Fat: 17g
Saturated Fat: 6g
Cholesterol: 5mg
Sodium: 120mg
Total Carbohydrates: 28g
Dietary fiber: 2g
Sugars: 19g
Protein: 5g
Vitamin A: 0%
Vitamin C: 0%
Calcium: 2%
Iron: 2%

Ingredients: milk chocolate (sugar, cocoa butter, chocolate, skim milk, milkfat, lactose, soy lecithin, artificial flavor), peanuts, enriched flour (flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid), sugar, partially hydogenated vegetable oil (soybean. canola, and cottonseed), dextrose, salt, natural flavor, baking soda, mono and diglycerides, propyl gallate to maintain freshness.