Step 1

Prepare the Bread Layers: Whisk together water and agar agar in a small saucepan. Set pan over medium-high, and whisk in milk, sugar, cream, and salt. Cook, stirring often, until it comes to a boil and sugar is dissolved. Remove from heat, and pour half of mixture into an 8-inch square pan or glass dish. Refrigerate until slightly set but still warm, about 7 minutes. Keep remaining bread layer mixture warm.

Step 2

While bread layer is setting, prepare the Jelly Layer: Whisk together water and agar in a small saucepan. Set pan over medium high, and whisk in jelly and sugar. Cook mixture, stirring often until it comes to a boil and sugar is dissolved. Remove from heat. Pour jelly mixture carefully over white layer, creating a 1/4-inch jelly layer. Return to refrigerator for about 5 minutes.

Step 3

Prepare the Peanut Butter Layer: Whisk together cold water and agar agar in a small saucepan. Set pan over medium-high, and stir in peanut butter, sugar, cream, and salt. Cook mixture, stirring constantly until it comes to a simmer and sugar is dissolved. Remove from heat. When jelly layer is mostly set and still slightly warm, pour peanut butter mixture carefully over the top creating a 1/4-inch layer. Return pan to refrigerator about 5 minutes to set.

Step 4

When peanut butter layer is mostly set and still slightly warm, pour remaining white layer over the top. Return pan to refrigerator to set completely, about 20 minutes.

Step 5

Invert pan onto a cutting board, and trim off any rounded edges. Cut into quarters, and cut each quarter into a small triangle. Admire the beauty, and eat if desired.