Step 1: Whisk Everything Together: Crack both eggs into the mug. Add the milk and the pat of butter. Using a fork, whisk vigorously for about 20 seconds until the yolks and whites are completely blended into a uniform pale yellow and you see small bubbles on the surface. The milk adds moisture that turns to steam in the microwave, creating a lighter, fluffier texture. The butter melts as the egg cooks and distributes richness throughout.
Step 2: First Microwave Burst — 30 Seconds: Place the mug in the microwave and cook on high for 30 seconds. Remove it — use a towel or oven mitt; the mug handle will be hot. The egg will have set around the edges while the center remains liquid. This is exactly what you want. Use the fork to push the cooked edges toward the center, allowing the uncooked liquid to flow outward toward the hot mug walls. This stirring step is what prevents the eggs from overcooking at the edges while staying raw in the middle.
Step 3: Second Microwave Burst — 20–30 Seconds: Return the mug to the microwave and cook for another 20–30 seconds. Check: the egg should be mostly set but the surface should still look slightly moist and glossy. If there's still visible liquid, give it another 10 seconds. The carryover heat will finish cooking the egg after you remove it from the microwave, so err on the side of slightly underdone — eggs that look fully cooked in the microwave will be overcooked and rubbery by the time you sit down to eat.
Step 4: Season and Add Toppings: Use the fork to break the egg into bite-sized curds. Season with salt and pepper. If you're adding cheese, stir it in now while the egg is hot enough to melt it. Mix-ins like diced ham, bacon, or spinach should be added before cooking — stir them into the raw egg mixture in Step 1 so they heat through. Scallions and fresh herbs go on last as a garnish.
Step 5: Eat Straight from the Mug or Plate It: You can eat directly from the mug — it's the ultimate low-effort breakfast — or tip the eggs onto a plate or a piece of toast. For a complete breakfast in under 5 minutes: toast a slice of bread while the eggs are in the microwave, slide the eggs onto the toast, and add a drizzle of hot sauce or a spoonful of salsa. Coffee optional but strongly encouraged.