– 1 cup raw walnuts, (or sub roasted unsalted walnuts) – 2 tablespoons ground flax or ground chia – 5 tablespoons warm water – ½ cup vegan butter, (at room temperature) – ¾ cup white sugar – 1 ⅓ cups (11 oz/ 312 g) mashed very ripe banana, (from about 3 medium bananas) – ½ teaspoon vanilla extract – 1 ½ cups all-purpose flour, (see notes for gluten-free) – 1 teaspoon baking soda – ½ teaspoon salt – ½ cup raisins, (or sub vegan chocolate chips)