Sherri makes little batches of marmalade in moments using her microwave, varying the flavors according to her whim and available citrus. Here’s how: Choose one large piece of citrus fruit or two small ones (orange, mandarin, lemon, lime, etc.). Wash well and cut into chunks (skin and all), remove seeds, then coarsely chop. Place equal measures of fruit and sugar in a deep, 2-quart, microwave-safe bowl. Stir to blend. Microwave on full power approximately 8 minutes, stirring occasionally, until thickened (timing may vary depending on your microwave). Pour into a jar, cover, and refrigerate.
If using grapefruit, discard its pith, as it can be extremely bitter. Remove the colored zest with a vegetable peeler, then peel away the thick white pith. Mince the zest, chop and seed the fruit, and combine them. The extra step is worthwhile, Sherri believes, because grapefruit marmalade is quite delicious.
Board Link: Microwave Marmalade