Nalesniki with Cheese and Pineapple (налесники)

Bahan-bahan (6 porsi)

• ½ cup lukewarm water
• 1 cup milk
• 4 large eggs
• 4 Tbsp unsalted butter (melted. Plus more to sauté.)
• 1 cup all-purpose flour
• 2 Tbsp sugar
• 1 pinch salt
• 8 oz package cream cheese (at room temperature)
• 16 oz small curd cottage cheese
• 4 Tbsp sugar
• 1 can (15 or 20 oz coarsely chopped pineapple chunks, well-drained)