I found a Hobnobs recipe on-line, and after a few changes to the recipe (we don't do grams very well in the US..) I tried it out last night. They're a hit!! Hobnobs are fantastically delicious cookies! The recipe I found states that it's a pretty accurate 'copycat' version of the classic British biscuit. Here's the recipe:

240g self-raising flour (about 2 cups)
240g sugar (1 1/2 cups to 1 1/2 cups)
240g gachas de avena oats (about 3 cups) -- I used Quaker oatmeal
240g margarine (1 1/4 cup) -- I used mantequilla - no margarine in my refrigerator!
1 Tbsp golden syrup (you can order it on-line... I used light...