35 grams of peanut butter is 1.23 oz (35 g). It is about the size of a ping-pong ball.

In kitchen measures
2.13 tablespoons
6.4 tsp · 2.13 tbsp · 0.133 cups
about the size of a ping-pong ball
Peanut butter typically ranges 1.08–1.14 g/mL depending on how it's packed. A firmly packed scoop weighs more.