Start by preheating your oven to 180°C (350°F) and grease your baking pan with butter, as needed.
In a large bowl, combine and mix the melted butter, brown sugar, vanilla extract, syrup, and eggs.
Add flour, baking powder, and salt, then mix to combine.
Add chopped walnuts and dates, and gently mix with the rest of the ingredients.
Transfer batter into the prepared pan and use a slanted spatula to even the top.
Place pan in the middle of the oven for 20 minutes.
Adjust the oven temperature to 160°C (320°F) and continue baking for 20 to 25 minutes.
Take the pan out of the oven, let cool for about 15 minutes, then slice into bars.
Food for the Gods is now all set for serving (or storing).