Abstract: Laser-plasma interactions driven by intense beams carrying orbital angular momentum (OAM) have become accessible with recent advances in optics manufacturing. However, transferring OAM to plasma waves can be challenging as OAM is encrypted in the spatial phase of the laser, which plays little to no role in ponderomotively driven interactions. Spatio-temporal structures carrying OAM can be created from the superposition of 2 or more OAM beams with different wavelengths. Referred to as ‘light springs’, these beams propagate with an intensity profile that is azimuthally dependent, allowing for ponderomotive coupling of OAM to plasmas. In this work, we demonstrate a novel technique to experimentally generate and measure light springs at relativistic intensities. We also use 2.5D PIC simulations to discuss the coupling of OAM from a light spring to a plasma.