Here is an interesting thought. Chocolate Chip Cookies come under the 1930s category because they were first developed at that point, only becoming popular during the war. Well that is what the wikipedia article says.
140g/5 oz soft brown sugar
110g 3.75 oz granulated sugar
2 eggs, room temperature, lightly beaten
1 teaspoon vanilla extract
280g/10oz plain all-purpose flour
1 teaspoon bicarbonate of soda
350g/12 oz dark chocolate bits
100g/3.5 oz pecans (or flaked almonds) roughly chopped
1. Preheat oven to 190C/375F and line two large baking trays with baking paper/greaseproof paper.
2. Cream the butter and sugars with electric beaters until light and fluffy.
3. Gradually add the egg, beating well after each addition.
4. Stir in the vanilla extract, then the sifted flour and bicarbonate until just combined.
5. Mix in the chocolate bits and pecans/almonds.
6. Drop table spoons of mixture onto the trays; leave room for spreading.
7. Bake cookies for 8 to 10 minutes or until golden brown. Cool on the trays before transferring to a wire rack to cool completely. When completely cold, store in airtight container.