Garlic potato pancakes filled with melted cheese

🛒 Ingredients:
🥔 500 g potatoes (boiled and mashed)
🧂 1/2 teaspoon salt
🌾 150 g wheat flour (plus some for dusting)
🥚 1 egg
🧄 2 cloves garlic (finely chopped or pressed through a press)
🧀 150 g yellow cheese (e.g. mozzarella or Gouda – easily available in Poland)
🧈 2 tablespoons butter (for frying)
🌿 Fresh parsley (for decoration, optional)
🔪 Preparation steps:
1️⃣ Preparation of the dough: