Tomato juice substitutes

https://www.thespruceeats.com/best-tomato-juice-substitutes-4155665
Dilute tomato sauce 1:1 and tomato paste 1:4

Rhubarb Recipes

Referred by a niece.
https://commonsensehome.com/rhubarb-pudding-cake/
Ingredients

2 cups chopped rhubarb
1 3/4 cup sugar, divided
3 tablespoons butter, softened
1 teaspoon baking powder
1/4 teaspoon salt
1/2 cup milk
1/2 teaspoon vanilla extract
1/2 teaspoon almond extract
1 cup sifted flour
1 tablespoon cornstarch
2/3 cup boiling water

Directions and other recipes in link.