Ultimate Macaroni& Cheese

• 2 eggs
• 1 onion (chopped)
• 375 gr corn (frozen thawed)
• 200 gr elbow macaroni
• 160 ml sour cream
• 140 gr packed extra sharp cheddar cheese (grated)
• 140 gr extra sharp cheddar cheese cubed
• 80 ml whipping cream
• 45 gr butter
• 38 gr spinach (frozen chopped thawed)