For the Cucumber and Quinoa Salad:
Cook quinoa according to package directions, then let it cool.
Slice cucumbers and finely chop the onion and parsley.
In a large bowl, combine the quinoa, cucumbers, onion, and parsley.
Drizzle with olive oil and lemon juice, tossing gently.
Season with salt and pepper. Serve chilled or at room temperature.
For the Espresso Caramel Cake:
Preheat the oven to 350°F (175°C).
In a saucepan, melt butter, then add sugar and eggs, whisking to combine.
Stir in brewed espresso and vanilla extract.
In a separate bowl, combine flour, baking soda, and salt.
Slowly add the dry ingredients to the wet mixture, stirring until smooth.
Pour the batter into a greased baking tray.
Bake for 25 minutes or until a toothpick comes out clean.
Allow the cake to cool, then drizzle with caramel sauce.