Preheat oven to 375 degrees. Line a baking sheet with parchment or a silicone baking mat.
Combine the breadstick mix, 2 tablespoons olive oil, shredded cheese, diced pepperoni, 1 teaspoon Italian seasoning, eggs and water in a mixing bowl. Stir with a fork to combine – it will not get smooth until you knead it. Dump the contents of the bowl onto a clean work surface and knead until the dough comes together and is smooth. Divide the dough into 12 equal pieces and roll into logs about 4 ½ inches long. If the pepperoni sticks out too much, just push them back into the dough. Place the breadsticks on the prepared baking sheet, brush with olive oil and sprinkle the Parmesan on top. Bake for 25 minutes or until golden brown. Serve warm with the sauce for dipping.
Sauce
Combine all ingredients in a small saucepan. Whisk to combine and heat until warm. Let sit while breadsticks are baking. Serve the sauce warm and on the side for dipping.