These easy make-ahead egg muffin cups are a quick, customizable, and portable breakfast or snack option that can be prepared in advance and enjoyed throughout the week.
Use room temperature eggs for fluffier muffins. Grease muffin tins well to prevent sticking. Chop fillings finely for even cooking. Do not overmix eggs to avoid rubbery texture. Use toothpick test to check doneness. Muffin cups can be frozen individually wrapped for up to 2 months. Reheat gently to avoid drying out.
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