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Old Fashioned Peanut Brittle Recipe Easy Homemade Candy with Crunch

old fashioned peanut brittle - featured image

This classic old fashioned peanut brittle is irresistibly crunchy, sweet, and buttery, just like grandma used to make. Perfect for holidays, gifting, or a nostalgic treat, it comes together quickly with simple pantry ingredients.

Ingredients

Scale
  • 2 cups granulated sugar
  • 1 cup light corn syrup
  • 1/2 cup water
  • 2 tablespoons unsalted butter
  • 2 cups roasted peanuts (lightly salted preferred)
  • 1 1/2 teaspoons baking soda
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon salt (optional, if peanuts are unsalted)

Instructions

  1. Line a large baking sheet (about 10×15 inches) with parchment paper or a silicone baking mat and set aside near your stove.
  2. In a large heavy-bottomed saucepan, combine granulated sugar, light corn syrup, and water. Stir gently to combine and place over medium heat.
  3. Bring the mixture to a gentle boil, stirring occasionally. Once boiling, stop stirring and let cook undisturbed. Attach a candy thermometer if using.
  4. Continue boiling until the temperature reaches 300°F (hard crack stage) or the syrup turns a deep golden amber, about 10-15 minutes. If not using a thermometer, drop a little syrup into cold water—it should crack and snap easily.
  5. Quickly stir in unsalted butter and roasted peanuts. Mix well; the mixture may bubble.
  6. Remove from heat and immediately add vanilla extract and baking soda. Stir quickly and thoroughly—the mixture will foam and lighten in color.
  7. Working fast, pour the foamy mixture onto your prepared baking sheet. Use a butter knife or spatula to spread into a thin, even layer (about 1/4 inch thick).
  8. Let the brittle sit undisturbed at room temperature for 30-45 minutes, until fully set and hard. Do not refrigerate.
  9. Once cool, gently lift the slab and break into bite-sized shards.

Notes

Use fresh baking soda for best texture. Measure all ingredients before starting, as candy moves quickly. For vegan or dairy-free, substitute butter with vegan margarine. Store brittle in an airtight container with parchment between layers to prevent sticking. Avoid making on humid days for best crunch.

Nutrition

Keywords: peanut brittle, homemade candy, old fashioned, crunchy, holiday treat, easy dessert, gluten-free, nostalgic, giftable, classic candy