Egg Muffins

Egg muffins are baked cups of scrambled eggs mixed with vegetables, cheese, and meat, cooked in a muffin tin until they set into portable portions. They are savory, protein-rich, and ready to eat cold straight from the fridge or warmed in seconds. The trick is keeping the oven temperature moderate so the eggs cook through evenly without browning or drying out.

Ingredients for Egg Muffins

Eggs are the base that binds everything together as it bakes. Milk makes the texture creamy and tender. Cheddar cheese adds sharpness and helps the muffins stay moist. Diced bell pepper and diced onion bring sweetness and texture. Cooked bacon or diced ham adds salty, smoky flavor and protein. Fresh spinach wilts into the eggs and adds iron and color. Salt and black pepper season the whole batch. Cooking spray keeps the muffins from sticking.

Why This Egg Muffins Works

Eggs set when they reach about 160°F (71°C) internally. In a muffin tin, the heat surrounds the egg mixture on all sides, so it cooks faster and more evenly than in a skillet. The milk loosens the eggs so they stay creamy even after they firm up.

The vegetables and meat are added raw or pre-cooked and chopped small so they cook through in the same 20 to 25 minutes it takes the eggs to set. If you add raw vegetables, they soften and release their water into the eggs, which is why the ratio of liquid to egg is important. Too much filling and the center stays runny; too little and the muffins taste bland.

Once cool, the muffins hold their shape and pop out of the tin easily. They freeze well and reheat without becoming rubbery because the small size means they warm through quickly.

Mistakes To Avoid

Oven temperature above 375°F (190°C) cooks the edges too fast while the center stays wet. The muffins will brown on top and around the edges before the inside sets. Lower the heat to 350°F (175°C) and check for doneness at 20 minutes instead of rushing it.

Overfilling the cups causes the batter to spill over the sides and bake onto the tin, and the center takes longer to set. Fill each muffin cup only about three-quarters full and bake off any overflow separately in a small ramekin.

Not cooking bacon or ham before adding it leaves raw pork in the center. Cook or use pre-cooked deli meat, and chop it small so it heats through in 20 to 25 minutes. Check that the eggs have reached 160°F (71°C) in the center with an instant-read thermometer.

Turning the muffins out immediately after baking while they are still very hot breaks them apart. Let them cool in the tin for 5 to 10 minutes so the edges set and pull away from the sides, then slide a thin knife around each cup and tip it out gently.

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Ingredients

• 8 large eggs
• 1/4 cup whole milk
• 1 cup shredded cheddar cheese
• 1/2 cup diced bell pepper
• 1/3 cup diced onion
• 6 slices cooked bacon, chopped, or 3/4 cup diced cooked ham
• 1 cup fresh spinach, chopped and squeezed dry
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• Cooking spray

Step-by-step Instructions

1. Preheat the oven to 350°F (175°C).
2. Spray a 12-cup muffin tin generously with cooking spray so the muffins release easily.
3. Whisk together the eggs, milk, salt, and black pepper in a medium bowl until well combined.
4. Stir in the cheese, bell pepper, onion, bacon or ham, and spinach until evenly distributed.
5. Divide the mixture evenly among the muffin cups, filling each about three-quarters full.
6. Bake at 350°F (175°C) for 20 to 25 minutes, until the eggs are set and a knife inserted in the center of a muffin comes out clean and the internal temperature reaches 160°F (71°C).
7. Let the muffins cool in the tin for 5 to 10 minutes until the edges pull away slightly from the sides.
8. Run a thin knife around the edge of each muffin cup and gently tip the muffin out onto a plate.