Frontier Fudge

Frontier fudge goes big on chocolate. Three types go in: unsweetened, semi-sweet chips, and milk chocolate, each melted in sequence so the flavors layer from deep and bitter to smooth and sweet. Marshmallows melt into the hot sugar base to create that signature fudge texture that’s creamy and sliceable, never grainy.

The technique matters here. Sugar, butter, and evaporated milk cook together until the sugar fully dissolves, then the pot gets covered and boils for five minutes. That covered boiling step washes down sugar crystals from the sides of the pan, which is how you avoid gritty fudge. Once the marshmallows dissolve, each chocolate goes in one at a time, stirring after each addition until completely melted before adding the next.

This is a serious batch. Five pounds fills a 9×13 pan and needs a full 8 to 10 hours to set before cutting.

Pro Tips

• Use a heavy-bottomed pot. Thin pans create hot spots that burn the sugar before the rest of the mixture catches up.
• Don’t stir during the covered boiling phase. Stirring introduces air and can cause crystallization.
• Chop the walnuts or pecans to a uniform size so every piece of fudge has an even distribution of nuts.
• Cut with a sharp knife dipped in hot water and wiped dry between cuts for clean edges.

Variations

• Peanut butter fudge swirl: Dollop peanut butter over the top before it sets and swirl with a knife for a chocolate-PB combo.
• Dark chocolate only: Skip the milk chocolate and double the unsweetened for a more intense, bittersweet fudge.