Peanut Butter & Jelly Bars - Chew Nibble Nosh

Ingredients

• 2 sticks butter, at room temperature, plus more for greasing the pan
• 1 1/2 cups sugar
• 1 teaspoon pure vanilla extract
• 2 eggs, at room temperature
• 2 cups creamy peanut butter (I used Jif)
• 3 cups all-purpose flour, plus more for dusting the pan
• 1 tsp. baking powder
• 1 1/2 tsp. kosher salt
• 1 1/2 cups (18 oz.) raspberry jam, or whatever kind suits your fancy
• 2/3 cup salted peanuts, coarsely chopped