Heat oven to 180 degrees Celsius (~350 degrees Fahrenheit).
In a greased oven safe container/baking tray (15-20x15-20), combine the pitted dates, water, and baking soda. Place in the microwave and heat for ~1-2 minutes (or until dates soften). Remove from microwave (be careful here ⚠️ ), and mash with a fork to combine. Alternatively, add hot water to dates and allow to sit for a few minutes before mashing.
Add in the remaining ingredients, mixing until combined. Place oats in the oven and cook for about ~35-40 minutes, or until golden and firm to touch (I cooked mine for 40, although individual ovens & settings may alter this).
Allow oats to cool in the container/ tray, and then loosen the edges with a knife. In an airtight container, with a lid, combine the topping ingredients (optional), replace the lid, and shake vigorously to combine/ emulsify healthy fats. Add the topping.
Upon serving, cut into ~4 servings*. If serving warm the next day - reheat a slice in the microwave for ~1 minute, and serve with yoghurt of choice, or serve as is/cold.
