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1
Preheat oven to 350 degrees.
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2
Use a toaster oven if you have one.
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3
Grease 8x8 pan with butter or margarine.
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4
Line with parchment paper, allowing the paper to come above the bottom of the pan so you can use it to lift the bars out when they are done.
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5
Crush graham crackers finely in a small bowl and add butter.
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6
Microwave until butter is melted, about 45 seconds, stirring halfway through.
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7
Press mixture into prepared pan.
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8
Bake for about 5 to 10 minutes.
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9
Put chocolate into bowl used for graham crackers and microwave for about 40 seconds.
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10
Stir, then microwave at roughly 20 second intervals or until the chocolate is melted.
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11
When it is melted or is almost at that point, add vanilla and stir, then microwave until the mixture is smooth.
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12
Pour chocolate mixture onto graham cracker crumbs.
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13
Stir together with a rubber spatula, then press the new mixture into the pan again.
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14
Freeze for about 15 minutes or until it is firm.
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15
Spread peanut butter over chocolate-graham cracker crust.
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16
Crush pretzels and sprinkle over the top.
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17
Freeze again until peanut butter has begun to freeze.
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18
Remove from freezer.
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19
Take bars out of pan by lifting with the parchment paper.
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20
Cut into approximately 12 squares.
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21
Store in freezer in airtight container.
