grandma's peanut brittle

Surrey South, BC
Updated on Oct 30, 2025

This delicious treat is great to make for Halloween, the holidays, or Easter. From kids to adults, everyone will love it!

prep time 10 Min
cook time 35 Min
method Stove Top
yield 12 serving(s)

Ingredients

  • 1/2 cup granulated sugar
  • 1/2 cup brown sugar
  • 1/4 cup water
  • 1/4 teaspoon ground Himalayan pink salt
  • 1/2 cup light corn syrup aka white corn syrup
  • 4 tablespoons butter, cubed and room temperature
  • 1 1/4 cups unsalted dry roasted peanuts
  • 1 teaspoon baking soda, sifted
  • 1/2 teaspoon pure vanilla extract

How To Make grandma's peanut brittle

  • Step 1
    Line a rimmed 10 x 15-inch baking sheet with a silicone mat or grease a baking sheet and place parchment paper - butter the paper. Transfer to a 170 degree F oven while making the brittle.
  • Step 2
    In a medium heavy-bottomed saucepan over medium heat, add sugars, water, salt, and corn syrup.
  • Step 3
    Using a wooden spoon, stir until nicely blended and the sugars are dissolved.
  • Step 4
    Bring the mixture to a gentle boil, stirring occasionally, brushing the sides of the pot with water.
  • Step 5
    Attach a candy thermometer on the side of the pot, making sure it’s submerged in the liquid and doesn’t touch the bottom of the saucepan.
  • Step 6
    Continue cooking until the mixture reaches 250 degrees F, about 8 to 10 minutes.
  • Step 7
    Add butter and stir until melted.
  • Step 8
    When the mixture reaches 280 degrees F, about 15 minutes, stir in the peanuts.
  • Step 9
    Cook, stirring constantly for about 10 minutes or until the temperature reads between 305 degrees F to 310 degrees F.
  • Step 10
    Remove from the heat and immediately add baking soda plus pure vanilla extract; stir vigorously – don’t overdo it.
  • Step 11
    Without waiting, pour the mixture onto the warmed, prepared baking sheet. Quickly spread out the mixture evenly.
  • Step 12
    Allow to cool completely, about 1 hour.
  • Step 13
    Peel off the brittle from the silicone mat or the parchment paper and break into pieces. Store in an airtight container for 4 weeks.
  • Step 14
    To view this delicious treat on YouTube, click on this link ➡ https://youtu.be/tqMKDtV68rk

Discover More

Category: Candies
Culture: American
Method: Stove Top
Ingredient: Sugar

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