Pepperoni Pretzel Bites

Name: Pepperoni Pretzel Bites
Prep time: 40 min
Cook time: 1 h 45 min
Total time: 1 h 45 min
Yield: 32 pieces
Ingredients: 220 g milk; 30 g unsalted butter; 2 ¼ tsp dried instant yeast; 350 g plain flour; 50 g light brown sugar; ¼ tsp dried parsley; ¼ tsp dried basil; ¼ tsp dried oregano; 1 tsp garlic powder; 1 tsp fine sea salt; 80 g onions; 2 garlic cloves; 30 g olive oil; 500 g passata; 1 Tbsp dried oregano; 2 tsp caster sugar; 1 tsp fine sea salt; 2 pinches ground black pepper; 250 g mozzarella; 80 g pepperoni; 700 g water; 60 g bicarbonate of soda; coarse sea salt; 40 g unsalted butter